Folding baby carriage



Aug. 19, 1952 w, UNES 2,607,605

FOLDING BABY CARRIAGE Filed May 17. 1949 2 SHEETS--SHEET 1 InventorMars-l? L//v-s,

Attorney Aug. 19, 1952 w. UNEs FOLDING BABY CARRIAGE 2 SHEETSSHEET 2Filed May 17. 1949 Inventor "471.754? L A 5o, Rum By M Attorney QPatented Aug. 19, 1952 ,f2.,eo7,605 .IEOLDINGQBABY CARRIAGE WalterLines,lMerton; London, England, asslgnor ;to .Lin'esrgBros. .Limited,London; England,- --a ..British1c.ompany.

"ApplicationMaylfl, 1949,"Serial 'No.;93;745

1*In Great-';Britain July-'21, 1948 This invention relates to babycarriages; perambulators' or ithe 'like' inwhich the handle arranged'tofold. I An object of this invention is-tov providea construction inwhich the handle will be firmly heldin the erected position and whichwillfold I into a small space withv a smooth movement and will returnto'the erected':position very easily uponLthe handle-being gripped andlifted.

Another 'object'istoprovide an improved linkagezzmechanism fora foldingbaby carriage.-

'The. invention will be described by reference to' theannexe'd drawings,(which show the .pre-' ferredfiorm of baby carriagevembo'dying fitzan'din which: 1

Figure 1 "is :a side view of "the baby, carriage intheerected position;

FFigure 'Zis: aside-view showing .the':ba'by car riage in-the'completely'folded position;

Figure 3"'is a side;fview showing the position vofathe'parts\duringrthefolding operation,':"and

Figure :4 Tis a view seen calong thearrow 'IV' in Figure 1. andis on alarger scale.

Thebaby carriage illustratedzhas abo'dy which consists of:..a"substantially.horizontal U.-shaped frame member "I from which a seat 2is sus-: pended by canvas :or :like .zflexible" material 5 3. Theibabysits'iinthist'body' facing to the left; .as seen in Figure lywi'thiits"i.eet'on a foot-rest .4. The i-'baby marriage is, of :-.course,symmetrical aboutithe"longitudinal centre'lines, and for 'ease otdescripti'on .only .thevsidershown :will'be described. T 1

"The :foot rest 4 issec'ured to an axle 5:to which the lower end of onemember 't lo'f aipair of crossed :iramemembers is pivotally connected,the other member I of this pair being pivotally connected at its lowerend toa second axle 8. The axle 5. carries awheel 9 and the axle 8 awheel l0, and it will be understood that there are similar wheels at theother side. The upper end of the frame member fi is pivotally connectedat H to theirr'ame member I and the upper-endof thecframe "member 1. is.pivotally: connected at Z l toi-the. ilower end .of. .alnemben; 24which; isi'pi-V- otally connected at I! to the end of the horizontalmember I. The crossed members 6 and I are pivotally connected at I2 andrelative movement of them about this pivot results in the wheels 9 and Ibeing moved apart into the position shown in Figure 2. The parts so fardescribed are not new.

In baby carriages of this general kind it is usual to provide a U-shapedhandle. In the present baby carriage the handle S shown t teams. (01.280-41) the diiference in the length of the links I S and [4. .Asa-result of the construction described "the handle can swing from afolded position in whichthe free end of the member I.

15 are of unequal length. The distance between 2 andiat each side "it isconnected by two links I and 15 to the frame member I. The link 14 runsfrom a pivotxpoint 16 a little above the lower end of the handle to thepivot point l1 and intact it is integral with the member 24,

which may be regarded as an extension of *it. The link l5 is'shorterthan the link l-4-rand-lt runs'from a pi'vot point l8 close to the freeend of the handle to a pivot point l9 displaced-from The links --l4-andthe-pivot points IT and 'l9'is greater thanthe pivot points I6' and i8and 'the'difference'between these two distances is substantially thesame'as it lies close and substantially paralleltothe horizontal-framemember to an erected'position; in which it is inclined to and-spacedapart from the horizontal member by the links, which :are

then themselves inclined atan' acute angle "to'- and I9. This isanimportantieature. 'flo hold' the. handle in thee-erected positionaymanuallv operated device:is-providedior maintainingv oneangle.,of.:the quadrilateral constant. "The device: is ,a ring 20'slidably:mountediontheqrhandlecto .move downwards over thepivotpointdfi'when.

the handle is brought;int,o'-the 'erectedipos'i'tion show-n in Figurejl.I-n'thisposition thethandle I3 and the link M make an acutexangle'withone-another and the apex of ,thisformswithwthe ring- 2-0 arigidtriangle; that-:istossay; zthesangle between the handlewand the, link l4cannotjincrease' so long-as the ring is in -position. .This

is another important feature.-

.Natura-lly if thewmanuallyoperated deviceg-is a ring as shown," thevanglewbetweenvthe handle largement 23 and further movement isprevented.

When the baby carriage is to be folded the two rings '28 are pulled upthe handle by the user and pressure on the top of the handle then causesit to rock into and through the position shown in Figure 3. It will beseen that the quadrilateral described isdeformed and the angle betweenthe handle l3 and the link [4 rapidly increases, and in fact the handleis finally brought 1 to lie immediately above the frame member i.

At each side the handle is mad substantially equal in length to themember I and in the folded position its ends lie directly above those ofthe member I so that in the folded position the baby carriage isextremely compact, as is clearly shown by Figure 2. The movement of thelinks 14 and l 5 simultaneously causes the crossed frame members tocollapse vertically and expand horizon- V tally thus folding not onlythe handle but also the body.

When the baby carriage is to be moved again intothe erected position thehandle 13 is gripped and it is found that if the parts beneath it are Ithen thrown forwards while a firm grip is kept on the handle the'wholeframe will open out with great ease and at the conclusion of the openinmovement the rings 25 will slide down and hold the handle and thus thewhole frame ,inposition.

2. A folding four-wheeled baby carriage, perambulator or the like,comprising at each side a. substantially horizontal member supporting 1and a' pivotal connectionbetween' the other of said lower members andsaid horizontal member.

a-body, a link crossing the horizontal member and pivoted to it, ahandle member pivotally connected to the upper end of said link, two

crossedmembers pivoted to the horizontal member and the lower end ofsaid link respectively and forming an X-frame carrying wheels, and

means adapted when the chair is erect to determine both the inclinationof said link to the horizontal member and the inclination of the handlemember to said link. V

i 3. A folding four-wheeled baby carriage, perambulator or the'like,comprising at each side a substantially horizontal member supporting abody, a link crossing the horizontal member and pivoted to it, a handlemember pivotally connected to the upper end of the link, two crossedmembers pivoted to the horizontal member and the lower end of the linkrespectively and forming an X-frame carrying wheels, and a second linkpivoted to the handle and the horizontal member and adapted when thecarriage is erect to determine both the inclination of the first link tothe horizontal member and thus the angular relation of the crossedmembers, and the inclination of the handle member to the horizontalmember. I

4. A folding four-wheeled perambulator or the like comprising at eachside a body, a substantially horizontal member supporting said body, alink pivotally connected to the horizontal member, two crossed memberspivoted to the horizontal member and to the link respectively andforming an X-frame carrying wheels, and a handle member pivoted to theupper end of the link, the handle member, the link and one of thecrossed members being substantially equal in length, and with thecarriage erect, extending consecutively in a substantially straightline, and when the chair is folded, forming a shallow 2.

5. 'A folding four-wheeled, baby carriage, perambulator ortheilike,comprising on eachside one limb of a handle, a substantially horizontalmember supporting'a body, a pivotal linkage connected to the handle limb'andto the hori-a zontal member; two crossed members pivoted to thehorizontal member and to the linkage re-.'

spectively and forming an X-frame carrying wheels, andmeansabovethehorizontal member adapted to hold the linkage in'aposition'determining the erect position of the X-. frame and.

the handle, and in which, when the frame is erect, said handle and saidlinkage are held. at

7 an .acute angle by a stop blocking the decreasing of the angle and aring slidable over said handle and linkage blocking the increasing oftheangle.

6. In a baby carriage, peramulator or the-like,

a handle and'a folding frame, said-frame at each side comprising asubstantially horizontalframe member, two crossed frame.memberspivotally connectedtogether and each atits lower, end

pivoted to an axle, one'of the crossed members being pivoted at-itsupper'end: to said'substan-i tially horizontal member, a pair of links.pivotally connected at two different-points to said. handle and also attwo different points tosaid framelmember, one of said links extendingdownwardly beyond said horizontal frame member and. being pivotallyconnected to the other of said cross frame members said links togetherwith part of the handle andzpart of said frame me; ber forming 'aquadrilateral, and a manually operated device adapted to maintain oneangle of said quadrilateral constant when said handle is The followingreferences are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 2,335,484 Chrisman Nov. 30, 1943Stackhouse Jan. 4, 1949'

